diff --git a/zh-cn/application-dev/reference/apis/js-apis-application-WindowExtensionAbility.md b/zh-cn/application-dev/reference/apis/js-apis-application-WindowExtensionAbility.md
index f4d2494b03c054e9c9d8d4a2b7ad7ea0ca10dc65..62849134f98cf0adbd78b463bd543e4529bef6ed 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-application-WindowExtensionAbility.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-application-WindowExtensionAbility.md
@@ -99,7 +99,7 @@ export default class MyWindowExtensionAbility extends WindowExtensionAbility {
   onWindowReady(window) {
     window.loadContent('WindowExtAbility/pages/index1').then(() => {
       window.getProperties().then((pro) => {
-        console.log("WindowExtension " + JSON.stringify(pro));
+        console.log('WindowExtension ' + JSON.stringify(pro));
       })
       window.show();
     })